sync: Expose sync functionality as functions

sync/sessions/nudge_tracker_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sync/sessions/nudge_tracker.h"
 
 #include "sync/internal_api/public/base/model_type_invalidation_map.h"
 #include "sync/internal_api/public/sessions/sync_source_info.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 35 matching lines @@
     nudge_tracker.FillProtoMessage(type, &gu_trigger);
     return gu_trigger.local_modification_nudges();
   }
 
   int ProtoRefreshRequestedCount(const NudgeTracker& nudge_tracker,
                                  ModelType type) {
     sync_pb::GetUpdateTriggers gu_trigger;
     nudge_tracker.FillProtoMessage(type, &gu_trigger);
     return gu_trigger.datatype_refresh_nudges();
   }
+
+  void FullySync(NudgeTracker* nudge_tracker) {
+    // We enable invalidations and perform a successful sync cycle so our
+    // invalidations list will be 100% up to date and reliable.
+    nudge_tracker->OnInvalidationsEnabled();
+    nudge_tracker->RecordSuccessfulSyncCycle();
+  }
 };
 
 // Exercise an empty NudgeTracker.
 // Use with valgrind to detect uninitialized members.
 TEST_F(NudgeTrackerTest, EmptyNudgeTracker) {
   NudgeTracker nudge_tracker;
 
   EXPECT_FALSE(nudge_tracker.IsSyncRequired());
   EXPECT_EQ(sync_pb::GetUpdatesCallerInfo::UNKNOWN,
             nudge_tracker.updates_source());
@@ skipping 339 matching lines @@
           ModelTypeSet(SESSIONS, PREFERENCES),
           nudge_tracker.GetThrottledTypes()));
   EXPECT_EQ(throttle2_length - throttle1_length,
             nudge_tracker.GetTimeUntilNextUnthrottle(t1));
 
   // Expire the second interval.
   nudge_tracker.UpdateTypeThrottlingState(t2);
   EXPECT_TRUE(nudge_tracker.GetThrottledTypes().Empty());
 }
 
-
 }  // namespace sessions
 }  // namespace syncer